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I bought 3 dc servo drivers off eBay and cannot really find any information on the case to get any further detailed information :(

I have the matching motors for the drives which are wired into blocks which slot in so they are no problem.

This leaves 7 terminal screw blocks.. I've done a test using an old atx psu powering it up using 12v and the motors ran. The supply was connected to terminals 5 and 7 so I assume that 6 is for a ground. Terminals 1,2 and 3,4 are respectively shorted with bits of wire.

so can anyone help me figure out what 1,2 and 3,4 are and how I may control it?

the encoder is connected using a push in connection. I can only guess that 1,2 and 3,4 can somehow be used to control the motion. I guess that when one set is not shorted the motor will run in reverse leaving the other one as a step input? I will update the thread later when I've tried!